mybatis爲了自動適配springboot開發適配包,需要引入
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis‐spring‐boot‐starter</artifactId>
<version>2.1.2</version>
</dependency>
可以使用2種方式整合
一、註解方式,直接在dao上註解
@Mapper
public interface DepartmentMapper {
@Select("select * from department where id=#{id}")
public Department getDeptById(Integer id);
@Delete("delete from department where id=#{id}")
public int deleteDeptById(Integer id);
@Options(useGeneratedKeys = true, keyProperty = "id")
@Insert("insert into department(departmentName) values(#{departmentName})")
public int insertDept(Department department);
@Update("update department set departmentName=#{departmentName} where id=#{id}")
public int updateDept(Department department);
}
備註:需要加入@Mapper才能被掃描到或者在全局(SpringbootmybatisApplication)上進行配置@MapperScan(value = "com.cax.springboot.mapper")
二、使用配置文件方式
使用該方式實現需要指定xml實現文件
mybatis:
config-location: classpath:mybatis/mybatis-config.xml
mapper-locations: classpath:mybatis/mapper/*.xml
@Mapper
public interface EmployeeMapper {
public Employee getEmployeeById(Integer id);
}
xml文件內容如下
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.cax.springboot.mapper.EmployeeMapper">
<select id="getEmployeeById" parameterType="Integer" resultType="com.cax.springboot.entry.Employee">
select * from employee where id = #{id}
</select>
</mapper>